Istituto di Scienze Marine     
Dumas C., Mollica A., Féron D., Régine Basseguy D., Etcheverry L., Bergel A. Checking graphite and stainless anodes with an experimental model of marine microbial fuel cell. In: Bioresource Technology, vol. 99 (19) pp. 8887 - 8894. Elsevier, 2008.
A procedure was proposed to mimic marine microbial fuel cell (MFC) in liquid phase. A graphite anode and a stainless steel cathode which have been proven, separately, to be efficient in MFC were investigated. A closed anodic compartment was inoculated with sediments, filled with deoxygenated seawater and fed with milk to recover the sediment's sulphide concentration. A stainless steel cathode, immersed in aerated seawater, used the marine biofilm formed on its surface to catalyze oxygen reduction. The cell implemented with a 0.02 m2-graphite anode supplied around 0.10 W/m2 for 45 days. A power of 0.02 W/m2 was obtained after the anode replacement by a 0.06 m2-stainless steel electrode. The cell lost its capacity to make a motor turn after one day of operation, but recovered its full efficiency after a few days in open circuit. The evolution of the kinetic properties of stainless steel was identified as responsible for the power limitation.
DOI: 10.1016/j.biortech.2008.04.054
Subject Microbial fuel cell
Stainless steel
Impedance spectroscopy

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